Home / 31,740.04-43,800.60-18,310.33

Finding the Fourth Proportional to 31,740.04, 43,800.60 and 18,310.33

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Solution

The fourth proportional to 31,740.04, 43,800.60 and 18,310.33 is: 25,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,740.04 : 43,800.60 = 18,310.33 : x
  2. Step 2: Convert to fraction form
    31,740.04/43,800.60 = 18,310.33/x
  3. Step 3: Cross multiply
    31,740.04x = 43,800.60 × 18,310.33
  4. Step 4: Simplify right side
    31,740.04x = 802,003,440.20
  5. Step 5: Solve for x
    x = 802,003,440.20/31,740.04
  6. Step 6: Final answer
    x = 25,267.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.